Test cache methods and expire Wiki caches as well

ee/app/models/ee/repository.rb

@@ -18,7 +18,7 @@ module EE
     # Runs code after a repository has been synced.
     def after_sync
       expire_all_method_caches
-      expire_branch_cache
+      expire_branch_cache if exists?
       expire_content_cache
     end
 

ee/app/services/geo/wiki_sync_service.rb

@@ -24,6 +24,7 @@ module Geo
       fail_registry!('Invalid wiki', e, force_to_redownload_wiki: true)
     ensure
       clean_up_temporary_repository if redownload
+      expire_repository_caches
     end
 
     def ssh_url_to_wiki
@@ -38,6 +39,11 @@ module Geo
       project.wiki.ensure_repository
     end
 
+    def expire_repository_caches
+      log_info('Expiring caches')
+      repository.after_sync
+    end
+
     def mark_sync_as_successful
       update_registry!(finished_at: DateTime.now, attrs: { last_wiki_sync_failure: nil })
 

ee/spec/services/geo/repository_sync_service_spec.rb

@@ -309,6 +309,7 @@ describe Geo::RepositorySyncService do
             force_to_redownload_repository: true
           )
 
+          expect(project.repository).to receive(:expire_exists_cache).twice.and_call_original
           expect(subject).not_to receive(:fail_registry!)
 
           subject.execute

ee/spec/services/geo/wiki_sync_service_spec.rb

@@ -181,6 +181,7 @@ RSpec.describe Geo::WikiSyncService do
             force_to_redownload_wiki: true
           )
 
+          expect(project.wiki.repository).to receive(:expire_exists_cache).twice.and_call_original
           expect(subject).not_to receive(:fail_registry!)
 
           subject.execute